β Scribed by E. Antczak; D. Defer; M. Elaoami; A. Chauchois; B. Duthoit
No coin nor oath required. For personal study only.
In view of the increasing worldwide demand for concrete, it is necessary to propose methods of testing associated with the building and follow-up of civil engineering structures. Concrete is a complex, multiple-phase material that is subject to atmospheric stresses. Its composition and implementation are very important for its life duration. The purpose is to propose different methods of non-destructive testing of cement matrix materials, based on heat transfer. The values obtained are linked to the state of maturity or alteration of the system in question.
π SIMILAR VOLUMES
experimental results are demonstrated for the submerged arc welding process. In this process the welding pool is covered by a thick layer of welding flux and is therefore optically invisible. By using computer data on the grey levels of the weld images and their histogram distributions, the three-di